Machine for making boiler cleaner nozzles



J. STAEMPFLI June 25, 1935.

MACHINE FOR MAKING BOILER CLEANER NOZZLES Filed July 19, 1954 2 Sheets-Sheet 1 June 25, 1935. J. STAEMPFLI H MACHINE FOR MAKING BOILE R CLEANER NOZZLES Filed July 19, 1954 2 Sheets-Sheet 2 MAKING BOILER CLEANER NOZZLES Patented June 25, 1935 MACHINE Foe Joseph Staempfli,

New Orleans, La.

. v Application July 19, 1934, Serial No. 736,074 e 7 Claims. (01. 153-48) The invention relates to boiler cleaner nozzle making machines and has for its objectto provide a machine wherein, boiler cleaner nozzles may be formed with vanes arcuate. shaped in horizontal cross section and with their adjacent edges-in spaced relation thereby forming slots through which liquid may pass. I

A further object is to provide atool for forming the nozzle; said tool comprising a body memher having a plurality of radially movable bending plates mounted therein with their inner edges registering with alternate edges of the segmental edges of the nozzle and forming. means whereby when said plates are forced inwardly, a1- ternateedges of thesegmental members of the nozzle will be bent inwardly towards the axis of the nozzle for forming vertical elongated" slots in the. nozzle. 7

A further object isto provide an axially disposedmember within the nozzle during the bending of the nozzle vanes and having channels therein, thereby forming flanges for limiting the inward bending of the vane edges.

With 'the above and other objects in viewthe 24;- invention resides in. the combination and arrangement of parts as hereinafter setv forth,

shown in thedrawings, described and claimed, it being understood that changes in the precise em;

bodiment of the invention may be made within the scope of whatis, claimed withoutdeparting from the spirit of the invention.

1 In the drawings: I v v v Figure 1' is a perspective View of the nozzle forming tool, showing the top'plate removed therefrom to better illustrate the invention.

' Figure 2 is a vertical transverse sectional view through the tool and nozzle therein. I t

Figure 3 is a top plan 'v'iewof the tool with the top plate removed.

Figure 4is a view similar to Figure 3 but showing the nozzle vanes'b'efore th'efbending operation'.

bending plates showing the bending rib thereof. Figure 6 is a perspective view of the split nozzle before the bending operation.

Figure 7 is a perspective. View of a p of the vanes. v x I v Figure 8 is a perspective View of 'afinished nozzle.

Figure 9 is a view in elevation of the machine.

Figure" 5 is a perspective view of one of the rtion of themember for limiting the bending operationstance as shown in Patent #1,888,515, issued November 22, 1932 to John H. Stockholder, however it varies in detail of construction, as hereinafter set forth.

The nozzle I is formed from a tubular member, for instance a pipe section and is provided with thread 2 at one end thereof, and with a plurality of curved vanes 3 for forming a plurality of vertical slots 4 through which surface debris and subperiphery of the nozzle, thereby obviating a twisting operation where the opposite edges of a vane extend beyond the outer periphery of the nozzle and the inner periphery of the nozzle as inthe Stockholder patent referred to.

at its inner end as in a twisting operation, and at the same time the vane is arcuate shaped in transverse cross section throughout its entire length, thereby making the same extremely rigid so that the vanes will not bend and flex incident to pressure passing through the nozzle during a cleaning operation. In making the nozzles they are first provided with slots clearly shown in Figure 6 and designated by the numeral 1. The nozzle so slottedis then placed on the mandrel 8 and is then inserted in the body 9 of the nozzle forming tool, which may be supported in any suitable manner.

The mandrel 8 is provided with a plurality of flanges I forming. recesses ll into which the alternate edges of the vanes 3 are bent and are limited in their inward movement, for insuring the forming of the curvedslots 4 as clearly shown in Figure 3 by limiting the inward bending move- In, this particular structure the vane is not weakened PATENT OFFlCE ment of the vane edges5. After the mandrel with the nipple I thereon is placed in the tool body 9 as above described the bending plates 12, which v are radially movable in slots 13 of the body are forced inwardly from the position shown in Figure l 4 to the position shown in Figure 3 for the bending operation. The inner edges of the bending v plates l2 are provided with curved channels I4 on one side thereof and channels IS on the opposite sides which forms a flange 16 adjacent the It will be noted by referringpto, Figure 3, that when the bending plates I 2 are nipple slots I.

forced inwardly, alternate edges of the vanes 3, will be bent inwardly and the mandrel 8 will limit the inward bending of the alternate edges, 5,

therefore it will be seen that a nipple is formed which will have the configuration shown in Figure 8 and above set forth. By providing the relatively narrow flanges It on the plates and the curved vane V forming plates channels I 4, it will be" seen that the starting of the bending operation will be at the extreme edge of vane, and the recesses 94 will allow the -main edge}, which, is bent, to curve thereby insuring a'jtra nsverse 'curve throughout the ,entire width and length of the Vane. The lower ends of the vane terminate in curved portions H,

referring to Figure 2, vane edges 5, at their lower ends will curve downwardly and outwardly to the body of the nozzle. i v

From the above it will be seen thata boiler cleaner nozzle is provided which is simple in construction and rigid, and that a tool is provided for forming saidnozzle which will allow the nozzle, to be formedfrom pipe sections, It will also be seen that the plates limay be forced inwardly in any suitable manner, for instance in a vise or ther m chin The tool body sis provided on its upper. end witharemoyable plate l8 for retaining the bend? ing plates I2 in the slots I3, and to its lower end witha removable plate l9, having a square aperture 20 th ere thorugh which receives the angular headll ofthe mandrel 8 for preventing rotation.

of the mandrel within the tool during the bending operation, hence it. will be seen that 'the flanges.

l0 .of.the mandrelwill positively limit the inward bending movementof, the nozzle vanes.

Referring to Figures 9 to ll inclusive, it willbe seenthat a machine is provided; in which the, nozzle forming member 9.-may be placed forimparting simultaneous inward. movement. to the l2. The ,nozzle forming member 9 is placedjn the forming machine. with itsrectangular shaped head 21 in the rectangular,

shaped aperture 22 in the bottom plate 23 of the machine, as clearly shown in Figure 9. The plate operating machine comprises thebottom plate. 23.

YQK S the arm of which are pivotally connected at 2'! to the vertical links 23. .The lower.

ends of the links 28am pivotally connected at 29 to inwardly and downwardly extending links 30,

the inner ends of which are pivotally. connected at. 31 to the inwardly and outwardly :slidable mem-- bers 32. V Theslidable members 32 move radially in relation to, the nipple holder 9 and are guidable inthe guides-33 carried bythe bottom plate 23 so that whenuthey .are simultaneously forced inwardly theywillgengage the bending plates I2 and simultaneously. force the sameinwardly for bending the blades during a single operation. The links extend upwardly'and are pivotally connectedat 34j.to the corners of the vertically movable plate 35-which has a ball and socket connection 36 to-the members .32 inwardly'towards the nozzle holder 9 for the vane bending operation. It'will be noted that the plate actuating members 32 may be moved inwardly and outwardly according tothe directio of rotation of the operating screw 31. V

The invention having been set forth what is. claimed as new and useful is:

1. Atool for forming nozzles having vanes on a tubular member with alternate edges of the-vanes bent inwardly towards the axis of the nozzle and with the other alternate edges of said vanes in e r c. e atiqa manozz er aid t o mprising a body member, achanneled mandrql withinthe'body member and adapted to receive the nozzle and bending plates slidably mounted in the body member and positioned whereby when forced inwardly thealternateedges of the nozzle vanes will be engaged thereby and be forced inwardly towards thechannels of the mandrel.

2. Aboiler cleaning nozzle forming tool comprising a body member, a channeled mandrel in the bodyv member and adapted to receive a tubular split nozzle with its vanes in concentric relation and slidable plates in the body member and positioned to register. with alternate edges of the nozzle vanes andbend the sameinwardly towards and into the mandrelchannels.

3. Adevice assetforth in-cIaim 2 including'narrow vane engaging edges carried by the plates,

and concave surfaces on the vanebendingedge her and means carried bythe body member and cooperating with alternate edges ofvanes formed by the splits of the nozzle for'bending in said alternate edges thereby forming vertically disposed splits or'water passages of substantially uni form widths.

5. A nozzle bending machine comprising a frame having upper and lower plates,- a nozzle holding body member, guide posts carried-by said plates, means for supporting the nozzle holding body member on-the lower plate, said nozzle holding; body having radially movable vane bending plates outwardly disposed, radiallymovable and guided members carried by the lower plate in the path of the bending plates of-the nozzle holder, vertically guided li n-k bars on the guide post, inwardly and downwardly inclined link connections between the. link bars and the radially movableand guidable. members onthe lower plate, an operating. screw threaded through the'upper plate, a headplate connected to the upper end of the vertically guided link bars, said operating screw being connected to said upper plate v l 6. A-nozzle bending machine comprising a, channeled mandrel adapted to receive a; split tubular. nozzle, a body member surrounding said nozzle and vane bending blades inwardlymoyableirr the. body member in the planeOf alternate vaneedges and channels in the mandreh 7. A nozzle bending machine comprising, a v

frame, guide postscarriedj by said frame, a, nozzle holding member, means ,for supporting the nozzle,

holding member in the. frame, said. nozzle holding member having radially,'movable vane.

bending plates outwardly disposed,v radially .mqvablev and guided members carried. by the f'rame in the path of the vane bending plates,.,slidableg members on the guide post,meansformovingsaid slidable members upwardly or downwardlyand,

connections between, the slidable members I on. the

guide post and the radially movable and guided;v -members carried by the frame whereby said' lastu named members may beforced inwardly 'J'osaen STAEMPFH. 

